<template>
	<view class="wrapper">
		<!-- 收货信息 -->
		<view class="shipment">
			<block v-if="address">
			    <view class="dt">收货人:</view>
			    <view class="dd meta">
			      <text class="name">{{address.userName}}</text>
			      <text class="phone">{{address.telNumber}}</text>
			    </view>
			    <view class="dt">收货地址:</view>
			    <view class="dd">{{addressStr}}</view>
			  </block>
			  <!-- 获取用户地址 -->
			  <button v-else @click="getAddress">获取收获地址</button>
		</view>
		<!-- 购物车 -->
		<view class="carts">
			<view class="item">
				<!-- 店铺名称 -->
				<view class="shopname">优购生活馆</view>
				<view class="goods" :key="item.goods_id" v-for="(item,index) in carts">
					<!-- 商品图片 -->
					<image class="pic" :src="item.goods_small_logo" />
					<!-- 商品信息 -->
					<view class="meta">
						<view class="name">{{item.goods_name}}</view>
						<view class="price">
							<text>￥</text>{{item.goods_price}}
							<text>.00</text>
						</view>
						<!-- 加减 -->
						<view class="amount">
							<text class="reduce" @click="changeCount(index, -1)">-</text>
							<input type="number" disabled :value="item.goods_count" class="number" />
							<text class="plus" @click="changeCount(index, 1)">+</text>
						</view>
					</view>
					<!-- 选框 -->
					<view class="checkbox">
						<icon @click="switchSingle(index, !item.goods_checked)" type="success" size="20" :color="item.goods_checked ? '#ea4451' : '#ccc'"></icon>
					</view>
				</view>
			</view>
		</view>
		<!-- 其它 -->
		<view class="extra">
			<label class="checkall">
				<icon @click="isSelAll = !isSelAll" type="success"  :color="isSelAll ? '#ea4451' : '#ccc'" size="20"></icon>全选
			</label>
			<view class="total">
				合计:
				<text>￥</text>
				<label>{{totalMoney}}</label>
				<text>.00</text>
			</view>
			<view @click="hCreateOrder" class="pay">结算({{selectedCarts.length}})</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				address: null,
				// 购物车数据
				carts: []
			};
		},
		onShow() {
			this.getCarts();
		},
		computed: {
			addressStr () {
				const ad = this.address
				if(ad){
					return ad.provinceName+ad.cityName+ad.countyName + ad.detailInfo
				} else {
					return ''
				}
			},
			selectedCarts() {
				return this.carts.filter(item => item.goods_checked)
			},
			totalMoney() {
				return this.selectedCarts.reduce((acc, cur) => acc+cur.goods_price*cur.goods_count, 0)
			},
			isSelAll: {
				get() {
					return this.carts.every(item => item.goods_checked)
				},
				set(val) {
					this.carts.forEach(item => item.goods_checked = val)
				}
			}
		},
		methods: {
			hCreateOrder() {
				// 1. 检查： 地址 & 是否有效选择商品
				if (!this.address || !this.selectedCarts.length) {
					return uni.showToast({
						title: "请填写收货地址和添加商品！",
						icon: "none"
					});
				}
				
				// 2. 检查token
				// 是否登录
				if (!uni.getStorageSync("token")) {
					// 跳转登录页
					return uni.navigateTo({
						url: "/packone/auth/auth"
					});
				}
				
				this.doCreateOrder()
				
			},
			async doCreateOrder() {
				await this.$request({
				  url: "my/orders/create",
				  method: "post",
				  data: {
				    order_price: 0.01, // this.totalMoney,
				    consignee_addr: this.addressStr,
				    goods: this.selectedCarts.map(item => {
							item.goods_number = item.goods_count;
							return item;
				   })
				  }
				});
				 
				// 订单成功创建
				// 1. 获取购物车中剩余的商品
				let residuePrds = this.carts.filter((item) => !item.goods_checked)
				// 更新本地
				uni.setStorageSync('carts', residuePrds)
				// 2. 跳转到订单页面
				uni.navigateTo({
					url: '/packone/order/order'
				})
			},
			switchSingle(idx, val) {
				this.carts[idx].goods_checked = val
			},
			getCarts() {
			  this.carts = uni.getStorageSync("carts") || [];
			},
			changeCount(idx, step) {
				this.carts[idx].goods_count += step
			},
			getAddress() {
			  uni.chooseAddress({
			    success: res => {
			      // console.log(res);
			      this.address = res;
			    }
			  });
			}
		}
	};
</script>

<style scoped lang="scss">
	.shipment {
		height: 100rpx;
		line-height: 2;
		padding: 30rpx 30rpx 40rpx 30rpx;
		font-size: 27rpx;
		color: #333;
		background-color: #fff;
		background-image: url(http://static.botue.com/ugo/images/cart_border%402x.png);
		background-size: contain;
		background-repeat: no-repeat;
		background-position: bottom;

		.dt {
			width: 140rpx;
			float: left;
			clear: both;
		}

		.dd {
			padding-left: 160rpx;
		}

		.meta {
			padding-right: 50rpx;
		}

		text.phone {
			float: right;
		}
	}

	.carts {
		background-color: #f4f4f4;
		padding-bottom: 110rpx;
		overflow: hidden;

		.shopname {
			padding: 30rpx;
			margin-top: 20rpx;
			font-size: 30rpx;
			color: #333;
			background-color: #fff;
			border-top: 1rpx solid #eee;
			border-bottom: 1rpx solid #eee;
		}

		.goods {
			display: flex;
			padding: 30rpx 20rpx 30rpx 0;
			margin-left: 100rpx;
			border-bottom: 1rpx solid #eee;
			background-color: #fff;

			position: relative;

			.checkbox {
				width: 101rpx;
				height: 100%;
				background-color: #fff;

				display: flex;
				justify-content: center;
				align-items: center;

				position: absolute;
				left: -100rpx;
				top: 0;
			}

			&:last-child {
				border-bottom: none;
			}

			.pic {
				width: 200rpx;
				height: 200rpx;
				margin-right: 30rpx;
			}

			.meta {
				flex: 1;
				font-size: 27rpx;
				color: #333;
				position: relative;
			}

			.name {
				width: 100%;
				overflow: hidden;
				text-overflow: ellipsis;
				display: -webkit-box;
				-webkit-line-clamp: 2;
				-webkit-box-orient: vertical;
			}

			.price {
				position: absolute;
				bottom: 0;

				color: #ea4451;
				font-size: 33rpx;

				text {
					font-size: 22rpx;
				}
			}

			.amount {
				position: absolute;
				bottom: 0;
				right: 20rpx;

				height: 48rpx;
				text-align: center;
				border: 1rpx solid #ddd;
				border-radius: 8rpx;

				display: flex;
				align-items: center;

				text {
					display: block;
					width: 60rpx;
					line-height: 48rpx;
					font-size: 36rpx;
					color: #ddd;
					text-align: center;
				}

				input {
					width: 60rpx;
					height: 48rpx;
					min-height: 48rpx;
					font-size: 27rpx;
					border-left: 1rpx solid #ddd;
					border-right: 1rpx solid #ddd;
				}
			}
		}
	}

	.extra {
		position: fixed;
		bottom: 0;
		/* #ifdef H5 */
		bottom: 50px;
		/* #endif */
		left: 0;
		z-index: 9;

		width: 750rpx;
		height: 96rpx;
		text-align: center;
		line-height: 96rpx;
		font-size: 36rpx;
		border-top: 1rpx solid #eee;
		background-color: #fff;
		color: #333;
		display: flex;

		.checkall {
			width: 140rpx;
			line-height: 1;
			margin-left: 25rpx;
			display: flex;
			align-items: center;

			icon {
				margin-right: 20rpx;
			}
		}

		.total {
			display: flex;
			justify-content: center;
			flex: 1;

			label,
			text {
				color: #ea4451;
				vertical-align: bottom;
				position: relative;
				bottom: -2rpx;
			}

			text {
				position: relative;
				bottom: -3rpx;
				font-size: 24rpx;

				&:first-child {
					margin-left: 10rpx;
				}
			}
		}

		.pay {
			width: 200rpx;
			background-color: #ea4451;
			color: #fff;
		}
	}
</style>
